Refinar búsqueda
Resultados 111-120 de 271
Characterization of proteolytic enzymes expressed in the midgut of Haemaphysalis longicornis
1999
Mulenga, A. (Hokkaido Univ., Sapporo (Japan)) | Sugimoto, C. | Onuma, M.
The proteolytic activities present in midguts of both fed and unfed Haemaphysalis longicornis were assessed by using the gelatin-substrate gel electrophoresis and inhibitor sensitivity analyses. Three predominant (116, 48 and 40 kDa) and two weak (55 and 60 kDa) proteinase bands were commonly expressed in both unfed and fed ticks, while a weak 80 kDa band was only present in fed ticks. Consistent with observations on other tick species, proteolytic activity against the gelatin substrate was observed only under acidic conditions. Inhibition studies against the gelatin substrate using a panel of inhibitors showed that the predominant proteolytic enzymes of 40 and 48 kDa molecular mass are cysteine proteinases. These results are discussed in the context of host vaccination as an alternative tick control method to the current use of chemical acaricides
Mostrar más [+] Menos [-]A comparison of serum biochemical changes in two breeds of sheep (Red Masai and Dorper) experimentally infected with Fasciola gigantica
1999
Waweru, J.G. | Kanyari, P.W.N. | Mwangi, D.M. | Ngatia, T.A. (Nairobi Univ. (Kenya). Dept. of Veterinary Pathology and Microbiology) | Nansen, P.
Confirmation that PCR can be used to identify NAD-dependent and NAD-independent Haemophilus paragallinarum isolates
1999
Miflin, J.K. (Animal Research Inst., Moorooka (Australia)) | Chen, X. | Bragg, R.R. | Welgemoed, J.M. | Greyling, J.M. | Horner, R.F. | Blackall, P.J.
Seroprevalence of infectious bursal disease in non-vaccinated indigenous and exotic chickens on selected farms around Gaborone, Botswana
1999
Mushi, E.Z. (Botswana College of Agriculture, Gaborone (Botswana)) | Binta, M.G. | Chabo, R.G. | Ndebele, R.T.
Copper poisoning in wild ruminants in the Kruger National Park [South Africa]: Geobotanical and environmental investigation
1999
Grobler, D.G. (Pretoria Univ., Onderstepoort (South Africa). Dept. of Pharmacology and Toxicology)
The occurence of Theileria and Cowdria parasites in African buffalo (Syncerus caffer) and their associated Amblyomma hebraeum ticks
1999
Allsopp, M.T.E.P. (Agricultural Research Council, Onderstepoort (South Africa). Onderstepoort Veterianry Inst.) | Theron, J. | Coetzee, M.L. | Dunsterville, M.T. | Allsopp, B.A.
Experimental studies with Strongyloides papillosus in goats
1999
Pienaar, J.G. (Regional Veterinary Laboratory, Potgietersrus (South Africa)) | Basson, P.A. | Du Plessis, J.L. | Collins, H.M. | Naude, T.W. | Boyazoglu, P.A. | Boomker, J. | Reyers, F. | Pienaar, W.L.
A serological survey of bovine babesiosis in northern and eastern Zimbabwe
1999
Katsande, T.C. (Central Veterinary Laboratory, Harare (Zimbabwe)) | More, S.J. | Bock, R.E. | Mabikacheche, L. | Molloy, J.B. | Ncube, C.
Evaluation of conventional odour attractants for Glossina brevipalpis and Glossina austeni (Diptera: Glossinidae) in South Africa
1999
Kappmeier, K. | Nevill, E.M. (Agricultural Research Council, Onderstepoort (South Africa). Onderstepoort Veterinary Inst.)
Attempted induction of chronic copper poisoning in boma confined impala
1999
Grobler, D.G. (Kruger National Park, Skukuza (South Africa). Research and Development) | Swan, G.E.
